Morphometrical and Dental Pathological Studies on Skulls from Yin-Shang Period.

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  • INOUE Naohiko
    Department of Oral Surgery, Branch Hospital, The University of Tokyo
  • TAKAHASHI Yoshihiko
    Department of Oral Surgery, Branch Hospital, The University of Tokyo
  • SAKASHITA Reiko
    Department of Oral Surgery, Branch Hospital, The University of Tokyo
  • WU Ming-Li
    Department of Oral Surgery, Branch Hospital, The University of Tokyo
  • NOZAKI Tadashige
    Department of Oral Surgery, Branch Hospital, The University of Tokyo
  • CHEN Chi-Wen
    Union Dental Group, Taipei, Taiwan, Republic of China
  • KAMEGAI Tetsuya
    Department of Orthodontics, Faculty of Dentistry, Iwate Medical College
  • SHIONO Koichi
    Department of Pedodontics, Kagoshima University Dental School

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Other Title
  • 殷商時代頭骨の形態学的ならびに歯科学的研究
  • 殷商時代頭骨の形態学的ならびに歯科学的研究〔英文〕
  • インショウ ジダイ トウコツ ノ ケイタイガクテキ ナラビニ シカガクテキ ケ

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Abstract

Three hundred and ninety eight skulls from the Yin-Shang period of China were investigated. The purpose of the present study is (1) to test inter-group difference in morphometrical characters since the samples were reported to be classified into several subgroups (YOUNG, 1985a, b); (2) to analyze the distribution pattern of dental disorders; (3) to find relationships between morphological characters and food culture.<br>On the basis of preliminary examination, 186 male skulls from the six subgroups were selected for craniometric as well as roentgenographic cephalometric measurements and the examination of dental disorders.<br>The results obtained are as follows: (1) statistically significant inter-group differences in morphometrics support YOUNG's initial classification of subgroups; (2) insignificant inter-group difference in dental disorders may suggest that there was no apparent dietary difference among subgroups; (3) it does not seem inducible that the dental disorders are modified by morphological characters; (4) a unique distribution pattern of dental caries in the subgroup II is likely to suggest life history different from those of the other subgroups; (5) the dominant reductive trend of lower face in the subgroup V may suggest their superiority in social status. Key Words Yin-Shang period, Skeletal remains, Craniometrics, Roentgenographic cephalometrics, Dental disorders

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